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  2. Biological process - Wikipedia

    en.wikipedia.org/wiki/Biological_process

    Biological processes are regulated by many means; examples include the control of gene expression, protein modification or interaction with a protein or substrate molecule. Homeostasis : regulation of the internal environment to maintain a constant state; for example, sweating to reduce temperature

  3. The Human Condition (Arendt book) - Wikipedia

    en.wikipedia.org/wiki/The_Human_Condition...

    The Human Condition, [1] first published in 1958, is Hannah Arendt's account of how "human activities" should be and have been understood throughout Western history. Arendt is interested in the vita activa (active life) as contrasted with the vita contemplativa (contemplative life) and concerned that the debate over the relative status of the two has blinded us to important insights about the ...

  4. History of life - Wikipedia

    en.wikipedia.org/wiki/History_of_life

    The history of life on Earth traces the processes by which living and extinct organisms evolved, from the earliest emergence of life to the present day. Earth formed about 4.5 billion years ago (abbreviated as Ga, for gigaannum) and evidence suggests that life emerged prior to 3.7 Ga. [1] [2] [3] The similarities among all known present-day species indicate that they have diverged through the ...

  5. Human embryonic development - Wikipedia

    en.wikipedia.org/wiki/Human_embryonic_development

    The trophoblasts secrete fluid into the blastocoel. The resulting increase in size of the blastocyst causes it to hatch through the zona pellucida, which then disintegrates. [5] This process is called zona hatching and it takes place on the sixth day of embryo development, immediately before the implantation process. The hatching of the human ...

  6. Life - Wikipedia

    en.wikipedia.org/wiki/Life

    Life is a quality that distinguishes matter that has biological processes, such as signaling and self-sustaining processes, from matter that does not. It is defined descriptively by the capacity for homeostasis , organisation , metabolism , growth , adaptation , response to stimuli , and reproduction .

  7. C H E L S E A G R E E N P U B L I S H I N G W H I T E R I V E ...

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  8. Biological life cycle - Wikipedia

    en.wikipedia.org/wiki/Biological_life_cycle

    In biology, a biological life cycle (or just life cycle when the biological context is clear) is a series of stages of the life of an organism, that begins as a zygote, often in an egg, and concludes as an adult that reproduces, producing an offspring in the form of a new zygote which then itself goes through the same series of stages, the ...

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